KR200291766Y1 - Heating sole of a shoe using walking energy - Google Patents

Abstract

According to the present invention, frictional heat is generated as a fluid passes through an orifice due to shrinkage of a heat generating means built in a foot shoe by a walking, and the fluid is heated. When the heated fluid is circulated through a flow pipe And which is warm and warm by warming the feet, and is easy to wear and use, does not require external energy supply, and is economical as well as heat-shoe sole using walking energy that does not cause environmental pollution at all.

Such a heat-generating sole is a sole comprising a bottom plate to which the feet contact and a rear foot of the shoe formed on the rear portion of the bottom plate. The sole is built in the shoe of the shoe so as to fill the inside of the shoe, expand and shrink, Way; And a heat exchanger connected to the heat generating means and having an inlet at one end and an outlet at the other end, and a flow tube for discharging heat from the heat generating means and circulating the heated fluid through the bottom plate, .

Description

{Heating sole using shoe using walking energy}

The present invention relates to a shoe having a self-heating function so that it can be usefully used for people working at low temperatures, outdoor workers or climbers in winter, and more particularly, As the fluid passes through the orifice, frictional heat is generated to increase the temperature of the fluid. The heated fluid circulates through the flow tube provided in the sole of the shoe so as to transmit heat while warming the feet, thereby warming and warming the feet. Which is not only economical but also does not cause environmental pollution at all.

Footwear is a thing to wear on the foot for protection and decoration of the foot, and the structure has been appropriately changed according to various purposes of use. Heretofore, the structure of the shoe has been focused on improving the fit to the physical or geographical conditions, or to pursue only limited purposes such as keeping the foot comfortable and improving the performance through slip prevention and ventilation.

The foot is the farthest from the heart of the body, so the blood circulation is not active, so the body temperature is maintained and fatigue is easily felt. However, despite this weakness, the improvement for the warming of the foot is hardly achieved, and even if there is the warming structure of the shoe, it is merely a simple structure change which cuts the external temperature by adding the insulating member to the shoe itself.

Therefore, in the case of a person working at a low temperature, an outdoors person in a winter season, or a mountain climber climbing in a cryogenic condition, it is necessary to increase the number of socks to be worn for warming the feet or to wear tight and thick winter clothing.

As a result, it is not easy to feel the inconvenience of the action, and the warming effect can not be expected for the warming or socking.

In order to fundamentally eliminate the above problem, development of a shoe having a built-in heating means has been under way recently. An example of this is shown in Figs. 1A and 1B.

Figs. 1A and 1B relate to a heat-generating shoe incorporating a conventional heat-generating means, wherein Fig. 1A is a side sectional view and Fig. 1B is a bottom view.

As shown in the figure, a heating wire 20 is embedded in a bottom plate 12 of a shoe 10 and a power supply source 30 for supplying power to the heating wire 20 is mounted on a shoe shaft 14. As a power supply source 30, a dry battery is usually used. A lid 18 is fixed to the rear shoe 14 of the shoe so that the lid 18 can be opened or closed. Therefore, the completely consumed battery can be replaced by opening the cover 18. [

As described above, in the conventional shoes, since the battery is used as a power source for operating the heating means (heating wire), it is inconvenient to replace the battery when the battery is completely consumed for a predetermined period of time, It was not economical. In addition, since the battery must be disposed of after use, there has been a problem of adverse effect on the environment.

Accordingly, the object of the present invention is to solve the above-mentioned drawbacks. The object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide a heat- The heated fluid circulates through the flow pipe excreted in the shoe sole, and conveys heat to warm the feet. It is easy to wear and use, and it is not only economical but also requires no external energy supply. And to provide heat-generating sole shoes using energy.

DETAILED DESCRIPTION OF THE EMBODIMENTS Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout.

1A and 1B are side sectional views and a bottom view of a heat-generating shoe incorporating a conventional heat-generating means,

FIGS. 2A and 2B are a plan view and a side sectional view showing a structure of a heat-generating sole using a walking energy according to the present invention,

FIGS. 3A and 3B are a plan view and a side sectional view of the heat generating sole in detail,

FIG. 4 is an enlarged detail view showing an orifice part extracted from a heat-generating sole using a walking energy according to the present invention,

FIG. 5 is an enlarged detailed view showing a check valve portion extracted from a heat-generating sole using walking energy according to the present invention,

6A to 6C are explanatory diagrams for explaining the principle of heat generation of the present invention.

DESCRIPTION OF REFERENCE NUMERALS

50: sole 52: bottom plate

54: shoe shaft 60: heating means

62: Bellows 64: Top cover

64a: Charging ball 66: Lower cover

68: plug 70: flow tube

72: accumulation portion 80: orifice

90: Check valve 91: Valve body

92: Customs 93: Cantonese

94: opening and closing ball 95: spring

96: spring fixing jaw 100: fluid

In order to attain the above object, a heat-generating sole using walking energy according to the present invention comprises a bottom plate to which a foot contacts, and a sole comprising a rear shoe formed on a rear portion of the bottom plate, A heating means for filling the inside of the heating chamber and shrinking and expanding with walking to cause frictional heat; And a heat exchanger connected to the heat generating means and having an inlet at one end and an outlet at the other end, and a flow tube for discharging heat from the heat generating means and circulating the heated fluid through the bottom plate, .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 2A and 2B are a plan view and a side sectional view showing the structure of a heat-generating sole using walking energy according to the present invention. FIGS. 3A and 3B are a plan view and a side view, respectively, to be. Fig. 4 is an enlarged detailed view showing an orifice part extracted from a heat-generating sole using walk energy according to the present invention. Fig. 5 is a detailed view of a heat-sensing sole using a walking energy according to the present invention Fig.

The shoe sole 50 is generally constituted by a flat bottom plate 52 with which the sole comes into contact and a shoe bottom shaft 54 attached to the rear bottom of the bottom plate 52 as shown in FIG. A heat generating means 60 is incorporated in the shoe heel 54 and a flow tube 70 through which the heated fluid generated by the operation of the heat generating means 60 flows is disposed on the bottom plate 52.

The heat generating means 60 is a bellows 62 filled with a viscous fluid, and upper and lower covers 64 and 66 are fixed to upper and lower portions of the bellows 62, respectively. The bellows 62 is an elastic body capable of shrinking and expanding restoring motion, and preferably a low elastic body. Furthermore, it is preferable that the shoe heel 54 having the bellows 62 built therein is also made of a low-elasticity material having durability so that the restoring motion of the bellows 62 is facilitated. That is, the contraction and restoration of the shoe heel 54 are interlocked with the contraction and restoration of the bellows 62, so that the bellows 62 and the shoe heel 54 are preferably made low in elasticity for ease of restoration.

The lower lid 66 sealing the lower opening of the bellows 62 and the bellows 62 is located within the shoe heel 54 and the upper lid 64 sealing the upper opening of the bellows 62 is disposed on the bottom plate 52). The upper lid 64 has a fill hole 64a at the center thereof for filling fluid into the bellows 62. The fill hole 64a is closed by a cap 68. [ The filling hole 64a and the cap 68 are formed by forming a male / female thread on the corresponding surface. The upper lid 64 is also connected to a flow tube 70 and disposed in the bottom plate 52. The flow tube 70 is connected to the upper lid 64 again around the entire length of the bottom plate 52. An orifice 80 is interposed between the upper lid 64 of the heat generating means 60 and one end of the flow pipe 70. A check valve is provided between the upper lid 64 and the other end of the flow pipe 70 A check valve 90 is interposed.

The orifice 80 is a small diameter hole that suddenly shrinks at a large diameter, as shown in FIG. 4, through which the viscous fluid rapidly increases in flow velocity and frictional heat due to friction between the viscous fluid and the inner wall of the orifice 80 . 5, the check valve 90 has a narrow tubular portion 92 which is connected to the flow pipe 70 in the inner space of the valve body 91, and the heat generating means 50, And the connected side is a light pipe (93). An opening and closing ball 94 for opening and closing a tubular tube 92 is pressed by a spring 95 to be actuated by an elastic force of a spring 95. The spring 95 is connected to an inner circumferential surface And is supported by a spring fixing jaw 96 provided on the base plate. Therefore, when the pressure on the side of the tubing 92 is larger than the sum of the elastic force and the pressure on the side of the light pipe 93, the opening and closing ball 94 overcomes the elastic force of the spring 95 and opens the tubular tube 92, The fluid on the side of the tubing 92 is recovered into the bellows 52 of the heating means 50 through the light pipe 93.

Accordingly, when the bellows 52 contracts, the fluid pressure inside the bellows 52 becomes relatively higher than the pressure of the flow tube 70 and the accumulation portion 72, so that the fluid flows through the orifice 80 toward the flow tube 70 And frictional heat due to friction between the viscous fluid and the inner wall of the orifice 80 is generated. As the fluid 100 passes through the orifice 80, it is heated by the frictional heat and reaches the flow tube 70. The flow tube 70 is provided with the accumulation portion 72, and the amount of the fluid flowing through the orifice As the pressure expands, the pressure increases. The accumulation portion 72 is made of a low-elasticity material having elasticity, and the flow tube 70 is made of a low-elasticity silicon tube. As the viscous fluid (100), it is preferable to use silicone oil. In addition to this, ordinary oil which does not change its viscosity even when used for a long period of time may be used. When the force acting on the bellows 62 is removed, a restoring force for restoring the bellows 62 to its original position is generated due to the elasticity. Therefore, the pressure of the viscous fluid inside the bellows 62 at this time, So that the fluid pushes the opening / closing ball 94 of the check valve 90 and circulates to the bellows 62.

6A to 6C are explanatory diagrams for explaining the principle of heat generation of the present invention. 6A shows a state in which no external force due to body weight is applied to the bellows, FIG. 6B shows a state in which an external force F due to weight is applied to the bellows in FIG. 6A, FIG. 6C shows a state in which external force F acting on the bellows is removed State. These drawings show the constituent elements of the present invention for the convenience of explanation of the principle of heat generation. The shrinking and restoring of the bellows are represented by the right piston, and the elasticity of the bellows is represented by the right spring. Shows the contraction and restoration of the flow tube and the accumulation part, and the spring on the left shows the elasticity of the accumulation part. Now, with reference to these drawings, the principle of heat generation of the present invention will be described in detail.

6A, the user wearing the shoe with the shoe sole 50 stays on the ground. When the external force F due to the weight acts on the bellows 62 of the heat generating means 60, the bellows 62 contracts The fluid pressure inside the bellows 62 increases as shown in FIG. 6B. The fluid pressure inside the bellows 62 is higher than the fluid pressure of the accumulation portion 72 of the flow tube 70 located on the left side of the orifice 80 so that the fluid inside the bellows 62 flows through the orifice 80 to the left . Therefore, the right spring, which shows the elasticity of the bellows 62, is compressed, and the left accumulator 72 is expanded by the pressure of the inflow fluid, so that the left spring, which shows the elasticity of the accumulator 72, is compressed.

If the right piston is moved by the distance d by the external force F in the above operation, the amount W of work generated by this force is obtained by the following equation.

(One)

Here, F (t) denotes an external force with time, and F (x) denotes an external force according to a moving distance. If the external force is constant in the above equation (1), F (x) = F = constant (constant).

(2)

The work W shown in equation (2) is a function of the energy (V ₁ , V ₂ ) stored in the two springs when the piston moves by the distance d, the energy (V ₃ ) Sum. Therefore, work (W) can be defined as follows.

(3)

Where V ₁ is the energy stored in the right spring, V ₂ is the energy stored in the left spring, V ₃ is the energy used to flow the fluid, and H is the exothermic energy.

From the above equation (3), the exothermic energy (H) generated in the shrinking process by the external force of the bellows

(4)

The above exothermic energy (H) is basically due to the frictional force received by the fluid passing through the orifice.

The restoring force is attributed to the position energies V ₁ and V ₂ stored in the two springs as a force for returning to the equilibrium state as shown in FIG. 6A. During restoration, most of the fluid flows through the check valve, and the fluid that flows back through the orifice is very small. At this time, since the flow path area is widened toward the flow direction of the check valve, energy loss due to friction is very small. Therefore, the restoring force stored in the spring is almost always used to move the fluid to the bellows.

If the spring coefficients of the bellows and the storage part are equivalently expressed so that the inner diameter of the cylinder is the same, the energy stored in each spring V ₁ and V ₂

(5)

(6)

In the above equations (5) and (6), k ₁ and k ₂ are the equivalent spring coefficients of the bellows and the accumulation part, respectively.

Also, the energy V ₃ used in the fluid flow is

(7)

The acceleration of fluid flow in the device The amount of energy (V ₃ ) used in the flow of the fluid is very small.

From the above analysis, it can be seen that the calorific value generated by the heating means is approximately

(8)

.

When decreasing the V _1, V ₂ in the subject innovation, namely the bellows and when reducing the accumulation of wealth an elastic (8) decreases to know the heat generating amount can be increased, but restored when the spring force of the energy (H) as is in the restored Becomes slow. 6A, 6B, and 6C must be repeatedly performed at the time of walking, so that it is difficult to ensure smooth operation when the restoration speed is too slow.

On the other hand, if the elasticity of the bellows and the storage portion is high, a large part of work due to external force is changed by the potential energy of the spring and stored, thereby reducing the heat generation amount. Therefore, in order to ensure smooth operation during walking and to maximize the exothermic energy, the elastic force of the bellows and the accumulation portion should be selected as an appropriate value.

On the other hand, frictional heat is a function of the viscosity of the fluid passing through the orifice, the radius and length of the orifice, the shape of the orifice inlet, and the flow rate of the fluid. Therefore, if the other conditions are constant, the larger the viscosity of the fluid, the greater the frictional heat and the greater the calorific value.

Now, we will look at mathematical calculations of the heating effect when pedestrians are walking on the pedestrian's foot by substituting the numerical data corresponding to the actual situation into the above equations.

If a person with a weight of 50 Kg wears and walks while wearing the boot with the heat-generating sole 50, the force applied to the bellows 62 of the heating means 60 is about 30 kg. The weight of the bellows 62 is designed so that the load acts on the bellows 62 so that the bellows 62 is operated to the extent that it does not disturb the walking. If the bellows 62 is shrunk by 5 mm and restored by this force of 30 Kg, the amount of work W due to this force is substituted into the above equation (2)

.

Assuming that the elastic potential energy stored in the bellows 62 and the accumulation unit 72 is about 30% in this work W, the energy generated in walking once becomes 1.029 Joule. It requires 4.2 Joules to raise 1 cc of water by 1 ° C. Therefore, if the viscous fluid 100 filled in the heat generating means 60 corresponds to 20 cc of water, the amount of heat required to raise the temperature of the entire heat generating device 60 by 1 DEG C is 84 J. Therefore, if the pedestrian walks about 80 steps, Lt; RTI ID = 0.0 > 1 C < / RTI >

Therefore, if the user wearing the present invention continues to walk, the foot is warmed up by 1 ° C for every 80 steps.

Meanwhile, by filling the heat generating means 60 of the present invention with a refrigerant instead of the viscous fluid 100, it functions as a cooling shoe window instead of a heat-generating shoe window. That is, in the fluid circulation structure of the present invention, when the viscous fluid is replaced with a refrigerant such as Freon gas, the refrigerant circulates by walking to cool the foot. The inner pressure of the bellows 62 is higher than the inner pressure of the flow tube 70 when a load is applied to the bellows 62 of the shoe sole by walking the shoe wearer, And is then injected into the flow tube 70. This injection process corresponds to a thermo-expansion process that maintains the isenthalpic enthalpy, so that the temperature of the refrigerant is lowered instead of lowering the pressure. The refrigerant having such a low temperature circulates through the flow pipe (70) and absorbs heat from the foot, so that a part or all of the refrigerant evaporates. Therefore, the latent heat when the refrigerant is evaporated cools the feet, thereby cooling the feet in a hot place by hot weather or heat, such as during the summer. In particular, when the load applied to the shoe heel is removed, the bellows 62 and the accumulating portion The pressure inside the bellows 62 is lower than the pressure inside the flow pipe 70 so that the refrigerant circulates through the flow pipe 70 and flows into the bellows 62 through the check valve 90 do. The refrigerant introduced into the bellows 62 emits heat to the outside air through the bellows 62, so that a part or all of the refrigerant is condensed and the refrigerant returns to its original state. In this case, since the bellows 62 is in the form of a corrugated tube, the contact area with the outside air is wide, so that heat is effectively discharged from the refrigerant whose temperature has risen. By cooling the foot by absorbing heat in the flow tube 70 and repeating the vapor phase and releasing heat in the bellows 62, it is possible to cool the foot and maintain coolness at high temperatures. It is to be understood that within the scope of the present invention, the technical idea of the present invention is not limited to or limited to only those embodiments, but may be modified within the scope of the technical idea of the present invention It will be understood that various changes and modifications may be made without departing from the spirit and scope of the invention.

As described above, in the heat-generating sole using walking energy according to the present invention, the kinetic energy due to the walking is converted from the heating means built into the shoe to the thermal energy, so that there is no need for a separate device or configuration for energy supply, Not only because it does not require energy input, but also because there is little maintenance cost. In addition, since batteries, batteries, and the like are not used, it is possible to prevent environmental pollution generated when disposing these power sources. Moreover, the present invention is capable of switching to a cooling function by replacing the viscous fluid with a refrigerant. Thereby, it is possible to keep the feet always cool in a hot summer day and a high temperature work place, thereby improving the comfort and workability.

Claims (7)

A shoe sole comprising a bottom plate to which a foot contacts and a shoe heel formed at a rear portion of the bottom plate, A heating means installed in the shoe of the shoe so as to fill the inside of the shoe so as to shrink and expand according to walking; And A flow pipe connected to the heat generating means and having an inlet at one end thereof and an outlet at the other end thereof and a flow pipe for discharging heat from the heating means to transfer heat to the feet when the heated fluid circulates through the bottom plate, Feet soles using walking energy included. The heat-generating boot according to claim 1, wherein an orifice is provided on an inlet side of the flow pipe. 2. The heat-generating sole according to claim 1, wherein a check valve is provided on an outlet side of the flow pipe to prevent reverse flow so that the fluid circulates in one direction. The heat-generating boot according to claim 1, wherein the flow pipe adjacent to the orifice is provided with a low-elasticity accumulating portion that is expanded and accumulated by the heated fluid passing through the orifice. The bellows according to claim 1, wherein the heat generating means comprises: a low-elasticity bellows for filling the fluid and expanding and contracting; a lower lid for closing a lower end of the bellows; and an upper lid for closing the upper end of the bellows, And an upper cover connected to the inside of the bellows so as to communicate with the inside of the bellows. [6] The heat-generating boot according to claim 5, wherein a filling hole for filling the fluid is formed in the upper cover, and the filling hole is closed by a cap. The heat-shoe sole according to claim 1, wherein the fluid is a viscous silicone oil or a general oil.